<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
        .content {
            width: 500px;
            margin: 100px auto;
        }
        .list {
            list-style: none;
            overflow: hidden;
        }
        .list li {
            float: left;
            width: 50px;
            height: 50px;
            margin-left: 15px;
            background-color: #0f88eb;
            overflow: hidden;
            position: relative;
        }
        .list li.list-item:before {
            content: "";
            position: absolute;
            overflow: hidden;
            display: block;
            left: 0px;
            top: 0px;
            right: 0;
            bottom: 0;
        }
        .list li.list-item:after {
            content: "";
            position: absolute;
            overflow: hidden;
            display: block;
            border: 1px solid transparent;
            height: 0px;
            width: 0px;
            left: 25px;
            top: 25px;
            border-radius: 50%;
            transition: all 0.32s cubic-bezier(0.24, 0.82, 0.48, 0.89);
        }
        .list:hover li.list-item:after {
            border: 1px solid #e5e5e5;
            width: 100px;
            height: 100px;
            top: -25px;
            left: -25px;
        }

    </style>
</head>
<body>
    <div class="content">
        <ul class="list">
            <li class="list-item">
            </li>
            <li class="list-item">
            </li>
            <li class="list-item">
            </li>
            <li class="list-item">
            </li>
        </ul>
    </div>
<script src="../../js/jquery.min.js"></script>
<script></script>
</body>
</html>